Yoke for draft-gears



C. A. CARSCADIN AND G. A. WOODMAN.

YOKE FOR DRAFT GEARS.

APPLICATION. FILED JUNE 6.19M.

Patented Oct. 19, 1920.

UNITED STATES, PATENT OFFICE.

CHARLES A. GARSGADIN AND GEORGE A. WOODMAN, OF CHICAGO, ILLINOIS,ASSIGNOES,

BY MESNE ASSIGNMENTS, TO AMERICAN STEEL FOUNDRIES,

A CORPORATION OF NEW JERSEY.

OF CHICAGO, ILLINOIS,

YOKE non. DRAFT-GEARS.

Specification of Letters Patent.

Patented Oct. 19, 1920.

To all whom it may concern:

Be it known that we, CHARLns A. CARS- CADI-N and Gnonen A. VVOODMAN,citizens of the United States, both residing at Chicago, in the countyof Cook and State of Illinois, have jointly invented certain new anduseful Improvements in Yokes for Draft- Gears, of which the following isa specification.

Our invention relates in general to railway draft gears and morespecifically to a yoke for the same. V

Heretofore in draft gears it has been customary to fasten the butt ofthe draw-bar to the yoke by means of rivets or keys. This connection hasproven unsatisfactory for the reason that the rivets and keys are easilybroken under the tremendous stress to which the draft gear iscustomarily subjected in use, thus making necessary frequent repairs.

One object of our invention is to provide an improved yoke for draftgears in which the butt of the draw-bar will be held in the yoke withoutthe use of rivets, keys or other fastening means of thisnature.

Other objects and advantages of our invention will be apparent as theinvention is more fully understood by reference to the followingspecification when read in connection with the accompanying drawing, inwhich Figure 1 is a perspective view of a drawbar yoke embodying ourinvention;

Fig. 2 is a side elevation of the yoke and associated parts;

Fig. 3 is a detail view of a draw bar yoke showing means forholding abinder plate; and,

Fig. 4 is a cross section of the yoke showing the binder plate inposition.

eferring first to Figs. 1 and 2 of the drawings, it will be noted thatwe have shown a draft gear yoke 10 preferably in the form of a U-shapedmember closed at its rear end and provided at its forward end with endflanges 11 which hold the butt 12 of the draw-bar 13 in position whenlongitudinal stress is exerted thereon. At the forward end of the yokeone side is closed by an integral member 14 and the opposite side isopen in order that the draw-bar' shank may be moved sidewise into or outof operative position in the yoke. Flanges the usual manner.

It will be understood that the enlargedv butt of the draw-bar is adaptedto fit loosely within the end of the yoke and to be held therein fromlongitudinal displacement by said usual end flanges or projections, thebutt belng of such size that when ,heldin normal position against theend flanges it will be held from sidewise displacement by the flanges 15of the yoke.

'It is desirable to provide a binder to strengthen the yoke by holdingthe top and bottom thereof against spreading and also hold the butt ofthe draw-bar from sidewise displacement; To this end we have shown inthe figures of the drawings means which may be used with our yoke; Asshown, the

flanges 15 may be so shapedas to form guides 18 in which a plate 19constructed to engage the guides may be inserted. The guides 18 do notextend to the forward end of the flanges 15, but a portion 20 of saidflanges 15 is left as a forward stop for the plate 19, which is insertedfrom the rear of the flanges 15.

The use of our invention will, it is thought, be clear from theforegoing description. In order to insert the draw-bar within the yoke,the draw-bar is arranged with its butt in the rear ofthe flanges 15 andis moved sidewise into the yoke, the butt passing behind the flanges l5and the shank passing between the same. The draw-bar is then movedforwardly until its butt is located between the flanges 15 and side,member 14, after which the follower plates and spring are arranged inplace in p is held from further forward displacement by the end flanges11 and from sidewise dis- In this position the butt placement by theside member 14 and side flanges 15.

In using the plate 19 the flanges 15 are formed as shown, or in anequivalent man ner, and the plate 19 is inserted with its flanges 21engaging the guides 18. This binder plate will prevent the yoke fromspreading under stress and in conjunction with the integral side member14 it provides an especially strong and substantial construction.

It readily will be seen that we have provided a form of yoke for usewith railway draft gears which obviates all of the difliculties whichare inherent in the yokes of the prior art. No rivets, keys or otherastening means which are liable to be loosened or broken are used in ourconstruction. The butt of the draw-bar is loosely held in position, butin such a way that it is impossible for the draw-bar to becomeaccidentally separated from the yoke.

It is thought that the invention, and many of its attendant advantages,will be understood from the foregoing without any further description,and it will be apparent that various changes may be made in the form,construction and arrangement of the parts without departing from thespirit and scope of the invention, or sacrificing any of its materialadvantages, the form hereinbefore disclosed being merely a preferredembodiment thereof.

e claim:

1. A yoke for railway draft gears comprising a body portion having anopening at one end suflicient only to accommodate the draw-bar shank,flanges integral with said body portion for preventing sidewisedisplacement of the butt of the drawbar when said butt is in normalposition, said flanges being spaced apart to allow the draw'bar shank tomove sidewise between the same, guides upon said flanges, and bindermeans adapted to be inserted in said guides for closing the openingbetween said flanges.

2. A yoke for railway draft gears comprising a body portion having anopening at one end suflicient only to accommodate the draw-bar shank,flanges integral with said body portion for preventing sidewisedisplacement of the butt of the draw-bar when said butt is in normalposition, said flanges being spaced apart to allow the draw-bar shank tomove sidewise between the same, guides upon said flanges, and a binderplate adapted to be inserted in said guides for closing the openingbetween the flanges. V 3. A yoke for railway draft gears comprising aU-shaped body member, means at the open end of said body member forengaging the butt of the draw-bar, flanged members integral with saidbody member at its open end adapted to prevent sidewise movement of saidbutt when in normal po-' sition, said flanged members being spaced apartsufficiently to permit the draw-bar shank topass therebetween, a springfor holding the butt of the draw-bar in normal position against the endof the yoke, guides on said flanged members, and a strengthening plateadapted to be inserted in said guides to close the opening therebetween.

CHARLES A. GARSOADIN. GEORGE A. WOODMAN.

lVitnesses VVM. O. BELT, M. A. KIDDIE.

